What is a good cleaner to take green stains/deposits from copper?
This is the screen inside a water fountain nozzle, hard to reach, so
it would be best if the cleaner were liquid and could be washed away
after I was done**
. The screen is so clogged that barely any water
will come out of the fountain.
(Because I can't reach the far side of the screen at all AND I don't
have a brush stiff enough but small enough that will reach even the
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